Home / 145,531.88-218,329.74-130,835.24

Finding the Fourth Proportional to 145,531.88, 218,329.74 and 130,835.24

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Solution

The fourth proportional to 145,531.88, 218,329.74 and 130,835.24 is: 196,281.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,531.88 : 218,329.74 = 130,835.24 : x
  2. Step 2: Convert to fraction form
    145,531.88/218,329.74 = 130,835.24/x
  3. Step 3: Cross multiply
    145,531.88x = 218,329.74 × 130,835.24
  4. Step 4: Simplify right side
    145,531.88x = 28,565,223,932.04
  5. Step 5: Solve for x
    x = 28,565,223,932.04/145,531.88
  6. Step 6: Final answer
    x = 196,281.56

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.